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- Xref: sparky sci.electronics:21649 sci.energy:6466 rec.autos.tech:17189
- Path: sparky!uunet!news.claremont.edu!nntp-server.caltech.edu!SOL1.GPS.CALTECH.EDU!CARL
- From: carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick)
- Newsgroups: sci.electronics,sci.energy,rec.autos.tech
- Subject: Re: Flywheel batteries as EV power source
- Date: 28 Dec 1992 20:10:13 GMT
- Organization: HST Wide Field/Planetary Camera
- Lines: 26
- Distribution: world
- Message-ID: <1hnmv5INNnna@gap.caltech.edu>
- References: <1992Dec13.114534.961@cmkrnl.com> <1992Dec15.004956.465@mtu.edu> <1992Dec15.194558.2556@adobe.com>,<1992Dec16.192456.6261@news.cs.brandeis.edu> <1goebdINNik@gap.caltech.edu>,<1h7r1iINNqo5@access.usask.ca>
- Reply-To: carl@SOL1.GPS.CALTECH.EDU
- NNTP-Posting-Host: sol1.gps.caltech.edu
-
- In article <1h7r1iINNqo5@access.usask.ca>, choy@skorpio.usask.ca (I am a terminator.) writes:
- >The particles will fly off linearly, but what if the housing surrounding the
- >flywheel was turning? Then the breaking flywheel may just cause the housing
- >to turn faster. The flywheel particle momentum is lost with a less
- >forceful impact (prolonged impact) because the turning housing is moving at
- >a lower speed relative to the flywheel particles (which in turn move at a
- >lower speed relative to the housing). It's a flywheel inside a flywheel inside
- >a flywheel.
-
- So you're proposing nested flywheels? Well, unfortunately, there's that nasty
- old law of conservation of energy again: You're trying to store a certain
- amount of energy. That energy has to go someplace. Now, you can spin a little
- flywheel up *REAL* fast, or you can use a somewhat larger flywheel, which
- doesn't have to be spun up quite so fast. Or you could have your flywheels
- within flywheels scenario. First of all, such a setup would require much
- higher precision in the implementation of the system. Second, what if it were
- the rotating container that failed? That'd be likely to cause a failure of the
- internal flywheel, and you still get a rather large boom.
- --------------------------------------------------------------------------------
- Carl J Lydick | INTERnet: CARL@SOL1.GPS.CALTECH.EDU | NSI/HEPnet: SOL1::CARL
-
- Disclaimer: Hey, I understand VAXen and VMS. That's what I get paid for. My
- understanding of astronomy is purely at the amateur level (or below). So
- unless what I'm saying is directly related to VAX/VMS, don't hold me or my
- organization responsible for it. If it IS related to VAX/VMS, you can try to
- hold me responsible for it, but my organization had nothing to do with it.
-